Home / 3,072.56-4,240.84-1,747.12

Finding the Fourth Proportional to 3,072.56, 4,240.84 and 1,747.12

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Solution

The fourth proportional to 3,072.56, 4,240.84 and 1,747.12 is: 2,411.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,072.56 : 4,240.84 = 1,747.12 : x
  2. Step 2: Convert to fraction form
    3,072.56/4,240.84 = 1,747.12/x
  3. Step 3: Cross multiply
    3,072.56x = 4,240.84 × 1,747.12
  4. Step 4: Simplify right side
    3,072.56x = 7,409,256.38
  5. Step 5: Solve for x
    x = 7,409,256.38/3,072.56
  6. Step 6: Final answer
    x = 2,411.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.